Target Infection

binary search, brute force, greedy, implementation, two pointers

KiaKio and Energy Intervals

binary search, bitmasks, data structures, divide and conquer, dsu, greedy, trees, two pointers

Backrooms Hill

constructive algorithms, dp, greedy, sortings, two pointers

Rumb Needs a Hand

implementation, implementation, implementation, sortings, sortings, sortings, two pointers, two pointers, two pointers

Culling Game

binary search, data structures, implementation, two pointers

1 2 3 and XOR, Where Did Everybody Go?

bitmasks, data structures, divide and conquer, dp, greedy, sortings, two pointers

Come Be My Friend, Don't Be So Scared (Hard Version)

constructive algorithms, data structures, dsu, graphs, hashing, trees, two pointers

Binary Bubble Sort Inversions

data structures, math, two pointers

Moo Language School

brute force, greedy, greedy, greedy, greedy, two pointers

Far Cities

interactive, trees, two pointers

Bermuda Rectangle

binary search, implementation, math, number theory, two pointers

Evanescent

implementation, strings, two pointers

Sum of Distinct Values in a Matrix

greedy, sortings, two pointers

Hypercarp and the Control Panel

brute force, data structures, two pointers

Double-Rift Dial

data structures, dfs and similar, dsu, implementation, two pointers

Excuse for Breaks

binary search, brute force, greedy, math, two pointers

Build a Tree

constructive algorithms, trees, two pointers

Unstable Elements

brute force, brute force, data structures, implementation, sortings, two pointers, two pointers

Revival

binary search, data structures, math, two pointers

Decidophobia

greedy, math, sortings, two pointers

Criterion in Burlandia

binary search, bitmasks, brute force, brute force, data structures, data structures, dfs and similar, divide and conquer, implementation, trees, two pointers

Vessels, Heights and Two Versions (Hard Version)

data structures, dfs and similar, dsu, greedy, implementation, two pointers

Vessels, Heights and Two Versions (Easy Version)

dfs and similar, dsu, greedy, implementation, two pointers

Goods on the Shelf

brute force, data structures, implementation, two pointers

Seating Arrangement (Hard Version)

binary search, binary search, binary search, greedy, greedy, greedy, math, two pointers

Seating Arrangement (Easy Version)

binary search, binary search, dp, greedy, greedy, two pointers, two pointers

Maximum Prefix Sums

constructive algorithms, greedy, implementation, two pointers

Minimum Influence

binary search, data structures, greedy, implementation, math, sortings, two pointers

Roadworks

binary search, data structures, dp, greedy, two pointers

Palindromex

binary search, brute force, constructive algorithms, data structures, greedy, implementation, two pointers

Mental Monumental (Hard Version)

data structures, greedy, math, two pointers

Mental Monumental (Easy Version)

binary search, data structures, greedy, math, two pointers

Zhily and Barknights

binary search, data structures, dp, math, sortings, two pointers

Equal Multisets (Easy Version)

binary search, brute force, greedy, two pointers

Bowser's Castle (Hard Version)

constructive algorithms, divide and conquer, interactive, trees, two pointers

Bowser's Castle (Medium Version)

constructive algorithms, divide and conquer, interactive, trees, two pointers

Sum of Fractions

binary search, brute force, combinatorics, data structures, greedy, math, number theory, two pointers

Binary Search with One Swap

binary search, divide and conquer, dp, hashing, math, two pointers

Array and Permutation

implementation, schedules, sortings, two pointers

Another Problem about Beautiful Pairs

brute force, math, two pointers

Monster Game

binary search, sortings, two pointers

Comparable Permutations

greedy, implementation, interactive, sortings, two pointers

Sub-RBS (Easy Version)

combinatorics, constructive algorithms, dp, greedy, strings, two pointers

The Robotic Rush

binary search, greedy, implementation, two pointers

OutOfMemoryError

data structures, implementation, math, two pointers

War Strategy

binary search, greedy, math, two pointers

New Year's Gifts

binary search, data structures, greedy, sortings, two pointers

Needle in a Haystack

greedy, strings, two pointers

Quotient and Remainder

binary search, greedy, two pointers

Range Operation

dp, greedy, math, two pointers

Copy String

greedy, implementation, strings, two pointers

Monopati

brute force, combinatorics, dp, math, two pointers

Loyalty

constructive algorithms, greedy, sortings, two pointers

Inverse Minimum Partition (Easy Version)

binary search, brute force, dp, geometry, greedy, math, two pointers

Rectangles

brute force, data structures, dp, dsu, greedy, implementation, two pointers

Billion Players Game

binary search, greedy, math, sortings, ternary search, two pointers

No Mind To Think

binary search, divide and conquer, greedy, sortings, ternary search, two pointers

Catshock

constructive algorithms, dfs and similar, graphs, trees, two pointers

Notelock

greedy, two pointers

Hidden Knowledge of the Ancients

data structures, two pointers

Split

binary search, data structures, two pointers

Inversion Graph Coloring (Hard Version)

binary search, combinatorics, data structures, dp, two pointers

Inversion Graph Coloring (Easy Version)

combinatorics, data structures, dp, greedy, two pointers

Discounts

greedy, sortings, two pointers

All Lengths Subtraction

brute force, two pointers

Antiamuny Wants to Learn Swap

data structures, greedy, two pointers

Like the Bitset

constructive algorithms, greedy, two pointers

Unjust Binary Life

binary search, data structures, greedy, greedy, math, sortings, two pointers

Submedians (Hard Version)

binary search, constructive algorithms, data structures, math, two pointers

Deque Process

constructive algorithms, greedy, sortings, two pointers

Big Wins! (hard version)

binary search, data structures, divide and conquer, dsu, trees, two pointers

Big Wins! (easy version)

binary search, data structures, dp, dsu, two pointers

Sets of Complementary Sums

brute force, combinatorics, dp, math, two pointers

Make a Palindrome

greedy, sortings, two pointers

MEX Count

binary search, data structures, greedy, sortings, two pointers

Yamakasi

binary search, brute force, data structures, greedy, two pointers

Coloring Game

binary search, brute force, greedy, two pointers

Equal Values

brute force, greedy, two pointers

Flower Boy

binary search, dp, greedy, two pointers

Keep the Sum

constructive algorithms, implementation, two pointers

Local Construction

constructive algorithms, dfs and similar, implementation, two pointers

Mani and Segments

data structures, implementation, sortings, two pointers

23 Kingdom

binary search, brute force, data structures, greedy, ternary search, two pointers

Wonderful Impostors

data structures, implementation, two pointers

Tung Tung Sahur

greedy, strings, two pointers

Shorten the Array

binary search, bitmasks, data structures, dfs and similar, greedy, strings, trees, two pointers

Interesting Ratio

brute force, math, number theory, two pointers

Canteen (Hard Version)

binary search, data structures, dp, flows, greedy, two pointers

Canteen (Easy Version)

binary search, data structures, flows, greedy, two pointers

Blossom

binary search, combinatorics, dp, implementation, math, two pointers

Counting Points

brute force, data structures, geometry, implementation, two pointers

Palindrome Shuffle

binary search, greedy, hashing, strings, two pointers

Beautiful Sequence

combinatorics, dp, greedy, two pointers

Ads

binary search, greedy, two pointers

We Be Summing

binary search, data structures, dp, two pointers

Eating

binary search, bitmasks, brute force, data structures, dp, greedy, trees, two pointers

Variety is Discouraged

binary search, constructive algorithms, greedy, two pointers

Game With Triangles

binary search, brute force, data structures, geometry, greedy, implementation, math, ternary search, two pointers

Game of Mathletes

games, greedy, sortings, two pointers

Formation

binary search, data structures, dp, sortings, two pointers